Descriptions:

This quick release seat post clamp is extremely strong and light. Engineered to provide an efficient clamping action without slipping even in wet and muddy conditions. It's great for any style of bike in need of securing a seat post.

Features:
High quality, CNC Machined, hollowed out lever
High shine and color
Easy to install and use
Hollow lever design and rust-resistant high quality retaining bolt
Thumb screw for accuracy & a quick release lever for ease of use
Caliber: 31.8mm,34.9mm
31.8mm seat post clamp is generally suitable for 27.2mm seat post
34.9mm seat post clamp is generally suitable for 30.8mm-31.6mm seat post

Note:
The diameter of the clamp you need is the frame NOT the diameter of the seat post.

Package Included:
1 x Seat Post Clamp